* Move some inclusions to the main header.
* Set the default debugging channel globally through the main header.
* Remove inclusions and definitions that already exist in the main header.
CORE-7716
svn path=/trunk/; revision=61432
* This significantly shrinks the dependency tracking data and the compiled objects size, which speeds up the whole build process (especially the incremental builds) accelerating the daily development as a result.
* No intended code changes, ~27% smaller build. Enjoy ;)
svn path=/trunk/; revision=58214
